Presentation 2017-12-14
Gate Leakage Issues in Low-Power Oscillator-type Sensor Circuits
Yusuke Imanaka, Hiroyuki Ito, Shiro Dosho, Noboru Ishihara, Kazuya Masu,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) A sensor circuit based on a relaxation oscillator has merits such that a sensor signal can be easily digitized using a counter and resolution can be varied according to the measurement time of a counter. In order to operate this circuit with sub-μW consumption, low power consumption of a comparator that consumes steady current is a problem. Since the response time of the comparator is getting worse due to low power consumption, in the sensor circuit based on a relaxation oscillator using this, the problem is that the measurement accuracy is getting worse. In this research group, we are developing an oscillator type sensor circuit using 180 nm Si CMOS process, but in this paper we investigated the use of 65 nm Si CMOS process to improve response speed . As a result of analysis by circuit simulation,in the case of aiming for sub-μW class operation, it was found that when using a relatively fine transistor, it may not operate properly due to the influence of gate leak.
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Keyword(in English)
Paper # CAS2017-96,ICD2017-84,CPSY2017-93
Date of Issue 2017-12-07 (CAS, ICD, CPSY)

Conference Information
Committee ICD / CPSY / CAS
Conference Date 2017/12/14(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Art Hotel Ishigakijima
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Hideto Hidaka(Renesas) / Koji Nakano(Hiroshima Univ.) / Mitsuru Hiraki(Renesas)
Vice Chair Makoto Nagata(Kobe Univ.) / Hidetsugu Irie(Univ. of Tokyo) / Takashi Miyoshi(Fujitsu) / Hideaki Okazaki(Shonan Inst. of Tech.)
Secretary Makoto Nagata(Univ. of Tokyo) / Hidetsugu Irie(Panasonic) / Takashi Miyoshi(Utsunomiya Univ.) / Hideaki Okazaki(Hokkaido Univ.)
Assistant Masanori Natsui(Tohoku Univ.) / Masatoshi Tsuge(Socionext) / Hiroyuki Ito(Tokyo Inst. of Tech.) / Pham Konkuha(Univ. of Electro-Comm.) / Yasuaki Ito(Hiroshima Univ.) / Tomoaki Tsumura(Nagoya Inst. of Tech.) / Yohei Nakamura(Hitachi)

Paper Information
Registration To Technical Committee on Integrated Circuits and Devices / Technical Committee on Computer Systems / Technical Committee on Circuits and Systems
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Gate Leakage Issues in Low-Power Oscillator-type Sensor Circuits
Sub Title (in English)
Keyword(1)
Keyword(2)
Keyword(3)
1st Author's Name Yusuke Imanaka
1st Author's Affiliation Tokyo Institute of Technology(Tokyo Tech.)
2nd Author's Name Hiroyuki Ito
2nd Author's Affiliation Tokyo Institute of Technology(Tokyo Tech.)
3rd Author's Name Shiro Dosho
3rd Author's Affiliation Tokyo Institute of Technology(Tokyo Tech.)
4th Author's Name Noboru Ishihara
4th Author's Affiliation Tokyo Institute of Technology(Tokyo Tech.)
5th Author's Name Kazuya Masu
5th Author's Affiliation Tokyo Institute of Technology(Tokyo Tech.)
Date 2017-12-14
Paper # CAS2017-96,ICD2017-84,CPSY2017-93
Volume (vol) vol.117
Number (no) CAS-343,ICD-344,CPSY-345
Page pp.pp.137-137(CAS), pp.137-137(ICD), pp.137-137(CPSY),
#Pages 1
Date of Issue 2017-12-07 (CAS, ICD, CPSY)